Improved brick-kiln



W. GILBERT BRICK KILN.

Pa-muted Sept. 29,1868.

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w IL L IA M c I-LBE RT, 0 F D nrn'o IT ,."M=IVG H1 G-A'NL Letters Patent No. 82,511 dated September -29, lees.

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Be it known that I, WILLrsm Gunner, of Detroit, in the county of Wayne, in the State of Michigan, have invented a new and improved'Perpetual Brick-Kiln; and I do hereby declare. that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the .letters of refer. ence marked thereon.

The nature of my invention consists in a new apparatus for burning brioks,,wh1ch will permit the work of loading perpetually the bricks at one end of the apparatus and unloading at the other, and without being obligedto-stop the fires;

Figure 1 is an elevation and side view of the kiln; A is a carriage, loaded ,with bricks to be burned. t Bis another carriage, .with burned bricks, after being'through the furnace, G. e D D' D" D' are harriages loaded with bricks during the operation of burning (shown through the holes 0 0/ on 011/ I E is a side view of one of the furnaces.

G G G! are three gates. F F F" are counter-weights for raising them.

H is the chimney, for the escape of smoke after combustion. V I I I" -ar e openings, to let the air from outside the furnace pass into the same underneath the carriages. J is the cooling-room. Figure 2 is a section through the two fu also by section-line A B.

D" is one of the carriages loaded with bricks.

K is a tank, with water in it, to cool the plates supporting the railroad. Figure 3 is a plan of the apparatus, in which the figures are the'same as in figs. 1 and 2. To enable those skilled in the art to ake and use my invention, I will proceed to describe its construction and operation.

The same letters represent the same pieces in thediflerent figures.

Fig. 1 rcpresents'a side view of the furnace in operation; This furnace is of a sufiicient length-to contain several 'carriages similar to those represent'ed in A D B,.and the railroad, which'is inside, is inclined from a to l, in order to carry the.carriages through the furnace. I

The furnace is closed at both ends by' two -hanging-doors, G G",,counterbalanced by means of counterweights. It is also divided into two apartments, of different dinrensious, by means of hanging doors, G, counterbalaucedas. the others by the weights F F. g

In the largest apartment, between the doors G and G(, the operation of burning goes on gradually.

The flames traverse'the furnace the whole length from D to D v The smokeescape's by the chimney, which is atthe extremity.

I call the smaller space, which is between G' and G", the cooling-room.

, I Operation of the Furnace.

Tl e fires being lighted in the furnaces, the bricks to be burned are loaded-on the carriageA, which is run out of tI-o furnace; then, the door G being raised, the carriage is pushedinto the entrance of the furnace, and takes thc place marked by the letter D; then the door G is lowered.- I

After a ecrtain'time the carriageA is-replaced by another carriage, which has alsebeen loaded with bricks to burn. After a certain time, the door being again opened,'the carriage A. is pushed, and moves forward the ones-alreauy-in.-the furnace, so that the last carriage occupies the place of the precedingone.

' The door is'then closed, "another carriage is put in the place of the last-introduced into the furnace, it is loaded with bricks, and,-.after a space of time, the door Gis again opened, and it is introduced, pushing forward y this icans th e others,,and so on, till'the furnace'is filled with carriages loaded with brick's, as'far as the door G.

rnaces, as shown in fig. l'by the section-line A B, and in Figures,

When the bricks, whichare on the carriage occupying the space D, are eufliciently burned, the doors G and G'are raised, and, by means of a carriage loaded outside, as we have before described, all the carriages which are in'the baking-room are pnshedjforward a suflicient space to allow the carriage D' to pass into the cooling-room, and the carriage A into the place of the'carriage D, 'each carriage taking-the place-of the preceding one.

.The doors G and G are then-closed.

When the-bricks on the carriage D are burned, the three doors are raised, and, in pushing a new carriage of bricks to be burned, from A to D,.the carriage which was in the cooling-room is pushed out, and a new one is introduced in its place; The three doors are then closed, and the operation goes on-indeiinitely.

It is evident'by the preceding that a gradual baking is obtained, the carriage nearest the chimney having;

the least temperature, the onenearest the furnace, where it arrives gradually, receiving the highest temperature. When the baking is completedin the'space D, the bricks are gradually cooled. v p

In 'order to prevent injury to the carriages, the air necessary for combustion is made to pass hnder them,

and to come to the furnace by the openings I I I under the grate, (fig. 2.) it

This air is regnlated'at will by means of the openings I I I. Some air passes also under the door G,

I wh'ichcanhe raised at will.

- There is made a space under the place most exposed to the action of the fire, for a reservoir of water, the

' evaporation of which lessens the liability of injury to the carriages.

I am aware that the several devices herein described, and mainly also their combination, are not new-,-and I do not, therefore, claim any of said devices separately, nor their combination but What I do claim, is p A progressive burning and cooling-kiln,'composed of the furnace C and cooling-room J, enclosed and separated by the verticallfslidinggates G G G, and fnrnishedwith the inclined track a b, the fireplaces E, on either side the furnace, and the chimney H, all arranged with relation to each ct'her,.and operating substantially as and for the purposes herein setforth.

I WILLIAM GILBERT.

Witnesses: I

J. NEWTON POWER, V0. COLLIAN. 

